Free online tool
Compress a PDF
Make a big PDF much smaller, for email, WhatsApp or upload forms with a size limit. Works best for scans and PDFs with photos.
Works in your browserFiles never uploadedNo sign-upFree
How small
Pages are saved as pictures, so text can no longer be selected or searched. Keep your original file too.
How to use
Compress in three steps
- Choose a PDFTap Choose PDF or drop it on the page.
- Pick how smallStrong for the smallest file, Light for the best quality.
- DownloadYou see the old and new size, and the smaller PDF downloads.
Need more tools? Get the app
15 photo tools in one Android app: works offline, free, no sign-up.
Questions
Good to know
Are my files uploaded?
No. Your PDF is opened and changed inside your browser on your own device. Nothing is sent to a server.
How much smaller will it get?
Scans and photo-heavy PDFs often get 50 to 90% smaller. PDFs with only text are already small and may not shrink.
Can I still select text?
No. To make the file small, each page is saved as a picture. Keep the original if you need to copy text.